| parent | Rheumatoid factor | LP16738-4 |
| child | Rheumatoid factor IgM | Body fluid | Serology - non-micro | LP403925-3 |
| child | Rheumatoid factor IgM | Serum | Serology - non-micro | LP403926-1 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Rheumatoid factor.IgM |
| DisplayName | en-US | Rheumatoid factor IgM |
LOINC Version: 2.81